The process of solving new problems based on the solutions of similar past problems. CBR is not only a powerful method for computer reasoning but also a pervasive behavior in everyday human problem solving. Related to prototype theory, which is most deeply explored in cognitive science.

1. Case Based Reasoning
A method of analogy solution making...
Presented By:
Suresh Pokharel (074MSCSK015)
Institute of Engineering, Pulchowk Campus

2. Introduction
● The process of solving new problems based on the solutions of similar past
problems.
● CBR is not only a powerful method for computer reasoning, but also a
pervasive behavior in everyday human problem solving.
● Related to prototype theory, which is most deeply explored in cognitive
science.

4. Definitions
● Case Based Reasoning is reasoning by remembering. -Leake, 1996
● A case based reasoner solves new problems by adapting solutions that were
used to solve old problems. -Riesbeck & Schank, 1989
● CBR is concerned with the use of remembered prior experiences in analyzing
new situations and solving problems. -C.D. Hafner, 2001

5. Process
Case-based reasoning has been formalized for purposes of computer reasoning as
a four-step process:
Retrieve:
Given a new case, retrieve similar cases from the case base.
Reuse:
Adapt the retrieved cases to fit to the new case.
Revise:
Evaluate the solution and revise it based on how well it works.
Retain:
Decide whether to retain this new case in the case base.

6. CBR Cycle
Figure. CBR Life Cycle

7. Example

8. References
● http://www.aiai.ed.ac.uk/links/cbr.html [Case Based Reasoning - A brief
introduction]
● http://alumni.media.mit.edu/~jorkin/generals/papers/Kolodner_case_based_re
asoning.pdf [An Introduction to Case-Based Reasoning]
● https://www.cs.indiana.edu/~leake/papers/p-96-01_dir.html/paper.html [CBR in
Context: The Present and Future]

9. THANK YOU